Shaping a device for Anti-viral disinfection and checking health of people moving in public space

The main goal of the project is to develop a product innovation consisting in the implementation of a new type of disinfection device that combines functionality with the ability to monitor health and detect potentially infected people. The de-signed device for virucidal disinfection, together with monitoring the health of us-ers in public spaces, is part of the strategy of preventive measures to limit the spread of the pandemic, with particular emphasis on the SARS-CoV-2 virus. The device is intended to improve the safety of the public in epidemiological threats, as well as a long-term strategy to protect and counteract subsequent waves of pandemics and other, so far unrecognized viruses. For the needs of the research task, the concepts of the device varied in terms of size and ergonomics were de-signed. Initial analyzes concerned solutions based on a prism structure in an or-thogonal system. For the above solutions, 1:1 scale test benches have been pre-pared in order to conduct advanced ergonomic, functional and accessibility anal-yses. In order to carry out preliminary spatial and functional analyzes of the sup-port, 2D and 3D tests were carried out using simplified human models containing anthropometric data. Percentile models of women and men of European descent were used. In addition, accessibility variants for the reach of the arms of a person moving in a wheelchair were examined in terms of the assumptions of universal design. As a result of ergonomic analyses, the distribution of components in the space of the shaped device was assumed.For irregular shapes of the device housing, it is required to test the rod elements of the internal structure, which builds the device's rigidity. Parametric shaping of bar systems requires the implementation of tools useful in mastering the geometry of chaotic structures. One of the more practical methods is the Contracting meth-od taken from topological graph theory. This action, on the one hand, reduces the number of structure nodes, and on the other hand, has ordering properties in the space of geometric irregular structures. The use of the contracting method should not lead to a reduction in the role of the designer, who should maintain a direct impact on the aesthetics and technical parameters of the created structure at every design stage. An important problem to be solved is the scaling of the density of the device's frame in terms of technology and optimization of material consump-tion. In order to assess the stiffness of the device housing, tests were carried out on models composed of stainless steel bars connected to the housing sheets. Due to the location of the device in an open public space, the resistance of the device to accidental dynamic impacts was tested.